Assembling the Back Support Step 6. (on certain models)
On certain models, your lower back support pad may not be attached to the back support. Place lower back support pad around edges of support as shown. Then fasten lower elastic strap to the metal hook on the other side of the seat pad. If your lower back support pad is already attached go to Step 6a.
Step 6a.
Flip head support and lower back support over as shown 1 .
1